... environmental friendly, high strength, low weight, fireproof, waterpro Heat Insulation Roof Tiles,roofing,sandwich panelSpecifications:1.Length: 3000mm2.Width: 600mm3 ... deformation in wet envirnments3. Soundproof4. Strength: Bendable and impact resistant5. Weight: 42kg per sq.m.6 ... and ammonia8. Installation: Easy to cut, saw, nail, paint and veneer 2. product photo: 3. Loading photo: Sandwich Panel